Pipe washing and clean out pump



A ril 11, 1933. E. KRIEGER 1,903,735

PIPE WASHING AND CLEAN-OUT PUMP Filed Dec. 27, 1929 f0 .9 5 5 J 2; 2 W k 4 .3 '11 W2? Ky x ver t'or E. Krieger Patented Apr. 11, 1933 PATENT ERNEST KEIEGER, OF WINNIPEG, MANITOBA, CANADA PIPE WASHING AND CLEAN OUT PUMP Application filed December 27, 1929, Serial No. 417,011, and in Canada Ju1y 29, 1929.

The invention relates to improvements in a pump for washing and cleaning out water pipes such as found in the drainage system of buildings and an object of the invention is to provide a simply constructed, easily operated pump which when connected in the system will wash out a dirty pipe and can be used to great advantage to effectively clean out pipes that are clogged with sewage.

A further object is to construct the pump so that it can be readily connected into the draining system and which is arranged and constructed so that it can be readily assembled and manufactured at comparatively small cost.

Vith the above more important objects in view, the invention consists essentially in the arrangement and construction of parts hereinafter more particularly described, IGTGT- ence being had to the accompanying drawing, in which Fig. 1 is a side view of the pump.

Fig. 2 is an enlarged detailed longitudinal sectional view centrally through the same,

parts being broken away.

Fig. 8 is an enlarged detailed vertical sectional view through the check valve employed.

Fig. 4 is a view showing part of a drainage system which can be effectively washed out or cleaned by utilizing my pump.

Fig. 5 is a horizontal sectional view at 5-5 Figure 4.

Fig. 6'is an enlarged detailed vertical sectional view centrally through a reducing plug employed.

In the drawing like characters of reference indicate corresponding parts in the several figures.

The pump comprises a pipe 1 of predetermined length which forms a cylinder, one end of the pipe receiving a screw threaded cap 2 through which the plunger rod 3 slidably passes. The plunger rod has one end bent to provide a handle l and the other end screw threaded to receive jam nuts 5 and 6.

Between the nuts I mount a number of leathers 7 containing discs 8, these forming a. piston or plunger operating within the cylinder. I To the end of the cylinder remote from the cap, I attach a nipple 9 which has the free end thereof eXteriorly and interiorly screw threaded as indicated at 10 and 11. An elbow 12 is screw threaded to the side of the nipple and a short pipe 13 connects the elbow to the casing of a check valve 14 which is connected in any suitable manner by a flexible pipe such as a hose 15 with a source of water supply such as the domestic water supply of the building. This connection can be made to a wash basin or laundry tap.

The above completes the description of the pump and in order that the way in which the same is used may be better understood, I have shown in Figure i a part of a plumbing systein,the main pipe which leads to the main sewer being indicated at 16. A basin 17 is connected by suitable pipes 18' to the pipe'16 and such a connection usually contains a Y 19 fitted with a removable screw plug 19 for cleaning out purposes and is also connected to the vent pipe 20, the vent pipe being between the basin and the pipe 16.

In the latter connections, I have shown a vertical pipe 21 between the vent pipe and the sewer pipe and in such an installation, considerable difficulty would be met with in cleaning out or removing an obstruction in the vertical pipe 21. Obviously the pipe 21 must be approached through the Y 19 by the removal of the plug 19 and if a clean out wire is used, it is practically impossible to enter it in the vertical pipe 21. If a force cup of the ordinary type be used in the basin and water is introduced in the pipes, it will be found that due to the obstruction, the water forced through the connection 18 will simply flow up the vent pipe and will not disturb the obstruction.

To remove the obstruction in the pipe 21 with my pump, it is only necessary to remove the plug 19, screw the thread 10 into the Y 19 and attach the pipe 15 to the domestic water supply. The operator then reciprocat-es the plunger several times by manipulating the handle 4. On the out stroke of the plunger, water is drawn into the cylinder past the valve lt which opens and on the in stroke, the valve closes and the water is ejected into the connection 18. This action continues and after several strokes of the plunger, the material plugging the pipe 21 will be removed. A certain amount of the admitted water will build up in the vent pipe but after a short time, there is a suflicient head of water in the vent pipe to cause the pump to work very efiectively in discharging the plugging sewage into the main pipe 16. A pipe such as that 21 is very troublesome to clean out with the present equipment.

Where it is desired to wash out the sewer pipe, such as in the cellar where a large Y 22 is employed, the Y plug 22 is removed and a special plug 28 Figure 6 is introduced,

this plug having a screw threaded hole 24' to receive the thread 10 of the nipple 9.

WVhat I claiinas my invention is:

A pump for removing obstruction in a sewerage system having a vent pipe communicating with the system on the side of the osbtruction opposite to the sewer discharge, comprising a cylinder adapted to be attached to a sewerage discharge pipe at the side of the obstruction opposite to the sewer and at all times in communication with the discharge pipe, a plunger tightly fitting the cylinder and bodily reciprocaltherein, a piston rod for operating the piston, a liquid supply pipe communicating with the discharge end of the cylinder below the piston and a check valve in the supply pipe and opening in the direction of the pump.

Signed at Winnipeg, this 20th day of September, 1929.

ERNEST KRIEGER. 

